president obama will also observe a moment of silence. and bells will ring to mark the moment when the bombs first went off. the surviving suspect lying in the hospital dead right now handcuffed under 24 hour guard. even though he is still in serious condition as we said investigators are questioning him every few hours with the doctors in the room with them. we are getting new information about this suspect and how the investigation is done. deborah feyerick joining us in new york. don lemon is outside beth israel hospital in boston. deb, start with you, what are you learning? >> well, anderson, we can tell you that investigators and doctors are staying close by the alleged suspect. he is on a ventilator, he is heavily sedated and also restrained. one of the reasons is because they don't want him when he does wake up, when he is sort of -- when he does wake up, they don't want him to rip the ventilator out of his mouth. they're really trying to keep him as calm and as stable as they possibly can. they don't want any additional stress to